Cheapest return flights from Boston to San Jose in January from 218€

AirHint found the following cheapest return flights from Boston (BOS) to San Jose (SJO) in January 2026 (see full year).

Return flights

13 Jan - 22 Jan United
28 Jan - 11 Feb Spirit Airlines
27 Jan - 11 Feb Spirit Airlines
07 Jan - 21 Jan Spirit Airlines
28 Jan - 01 Feb Spirit Airlines
06 Jan - 13 Jan Copa
06 Jan - 09 Jan Spirit Airlines
27 Jan - 06 Feb Spirit Airlines
27 Jan - 01 Feb Spirit Airlines
12 Jan - 01 Feb Spirit Airlines
15 Jan - 24 Jan United
07 Jan - 09 Jan Spirit Airlines
06 Jan - 11 Jan Spirit Airlines
02 Jan - 09 Jan Spirit Airlines
07 Jan - 11 Jan Spirit Airlines
02 Jan - 11 Jan Spirit Airlines
28 Jan - 10 Feb Spirit Airlines
27 Jan - 10 Feb Spirit Airlines
28 Jan - 09 Feb Spirit Airlines
28 Jan - 06 Feb Spirit Airlines

Also check the deals for one-way flights from Boston to San Jose in January.

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